| 摘要: |
| 用氨基酸自动分析仪测定经PEG、NaCl和高温处理后林生山黧豆幼苗中游离氨基酸的组成和含量。结果表明不同处理，特别是水分胁迫，使林生山黧豆幼苗中以DABA和HSE为代表的游离氨基酸的含量显著增加。本文讨论了不同胁迫条件对植物游离氨基酸组成的影响，以及林生山黧豆幼苗游离氨基酸组成对逆境反应的特点。研究证明，以DABA为主的天门冬族氨基酸是不同发育阶段和不同胁迫条件下林生山黧豆体内游离氨基酸的主体。 |
| 关键词: 林生山黧豆,胁迫,游离氨基酸,2.4－二氨基丁酸 |
| DOI： |
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| 基金项目:国家自然科学基金 |
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| Influences of Water Stress, Salt Stress and Heat Shock on Amino Acids Contents of Lathyrus sylvestris L |
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| Abstract: |
| Seedlings of Lathyrus sylvestris L. were treated with PEG, NaCl and high temperature. Free amino acids were extracted and analysed with Amino Acid Analyzer. Contents of free amino acids,the majority of which were DABA and HSE, in the seedlings were significantly increased under stress conditions.Influences of different stress conditions on the composition of free amino acids and the specific characteristics of seedling responses were discussed. Results showed that the majority of variations in free amino acid in Lathyrus sylvestris L. of different development stages and under different stress conditions was ASP-family amino acids,represented by DABA. |
| Key words: Lathrus sylvestris L,stress,free amino acids,2,4-diaminobutyric acid (DABA) |
